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Sizing the charge controllers in PV off-grid systems:

  • Do not exceed the controller allowed max current and voltage A/V defined as Isc/Voc.
  • In PWM controller max allowed voltage results from battery.min.voltage +30V (eg in 12Vdc systems: ~10Vmin.bat + 30V = 40V max).
  • In MPPT controller the absolute max allowed voltage is defined in the datasheet.
  • The real occuring current and voltage of the panel depends on temperature coefficient of the panel. Calculate additional 25% (A/V) which may occur under low temperature, as safety buffer (eg if panel Isc 8A, calculate +25% = 10A which may occur).
  • To choose the correct battery capacity, multiply the controller nominal current x10 (eg for an 10A controller choose 100Ah battery).
  • Always check the controller's datasheet and manual for individual parameters.


  
Diagrams    Guide PV Off-Grid Systems

Phocos CIS-N-10

Phocos CIS-N-10
Phocos CIS-N-10

System Voltage: 12/24V
Charge current: 10A
Max. Input Voltage: 30/50V
Low voltage disconnect: yes
Grounding: common negative
Charging method: PWM

Availability: in stock

Minimum order: no limit

Price: € 42.00
Net Price (excl. VAT)
pcs.
  • new

Phocos CIS-N-20

Phocos CIS-N-20
Phocos CIS-N-20

System Voltage: 12/24V
Charge current: 20A
Max. Input Voltage: 30/50V
Max. Input Power: 350/700W
Low voltage disconnect: yes
Grounding: common negative
Charging method: PWM

Availability: in stock

Minimum order: no limit

Price: € 59.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-LED-1050

Phocos CIS-N-LED-1050
Phocos CIS-N-LED-1050

System Voltage: 12/24V
Charge current: 20A
Max. Input Voltage: 30/50V
Max. Input Power: 350/700W
Low voltage disconnect: yes
Grounding: common negative
Charging method: PWM

Availability: in stock

Minimum order: no limit

Price: € 85.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-LED-1400

Phocos CIS-N-LED-1400
Phocos CIS-N-LED-1400

System Voltage: 12/24V
Charge current: 20A
Max. Input Voltage: 30/50V
Max. Input Power: 350/700W
Low voltage disconnect: yes
Grounding: negative
Charging method: PWM

Availability: in stock

Minimum order: no limit

Price: € 85.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-LED-2800

Phocos CIS-N-LED-2800
Phocos CIS-N-LED-2800

System Votage: 12/24V
Charge current: 20A
Max. Input Voltage: 30/50V
Max. Input Power: 350/700W
Low voltage disconnect: yes
Grounding: negative
Charging method: PWM

Availability: in stock

Minimum order: no limit

Price: € 85.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-MPPT-LED

Phocos CIS-N-MPPT-LED
Phocos CIS-N-MPPT-LED

12/24V PV solar/battery systems
Charge current: 15A
Max input voltage: 85Voc
Max input power: 250/500W
Low voltage disconnect: yes
Grounding: positive
Charging method: MPPT

Availability: in stock

Minimum order: no limit

Price: € 169.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-MPPT-85/15

Phocos CIS-N-MPPT-85/15
Phocos CIS-N-MPPT-85/15

System Voltage: 12/24V
Charge current: 15A
Max. Input Voltage: 85Voc
Max. Input Power: 250/500W
Low voltage disconnect: yes
Grounding: common negative
Charging method: MPPT

Availability: in stock

Minimum order: no limit

Price: € 123.00
Net Price (excl. VAT)
pcs.

Phocos CIS-N-MPPT 100/30

Phocos CIS-N-MPPT 100/30
Phocos CIS-N-MPPT 100/30

System Voltage: 12/24V
Charge current: 30A
Max. Input Voltage: 95Voc
Max. Input Power: 450/900W
Low voltage disconnect: yes
Grounding: common negative
Charging method: MPPT

Availability: in stock

Minimum order: no limit

Price: € 260.00
Net Price (excl. VAT)
pcs.
  • new

Phocos CIS10-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)

Phocos CIS10-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)
Phocos CIS10-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)

Waterproof (IP68) PV solar charge controller
Loads: dual loads (not dimmable)
Nominal voltage: 12/24V (autodetection)
Panel max current: 10A (Isc)
Panel max voltage: 42/52V (Voc) in 12/24V systems
Charging method: PWM 4-stage
Monitoring: LED's, positive-grounding possible (on plus line)
Function: protection against overcharge- and deep-discharge of battery, programmable for two loads (2L series)

SALE OFF

Availability: in stock

Minimum order: no limit

Price: € 30.00 € 60.00
Net Price (excl. VAT)
pcs.
  • Best Deal

Phocos CIS20-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)

Phocos CIS20-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)
Phocos CIS20-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)

Waterproof (IP68) PV solar charge controller
Loads: dual loads (not dimmable)
Nominal voltage: 12/24V (autodetection)
Panel max current: 20A (Isc)
Panel max voltage: 42/52V (Voc) in 12/24V systems
Charging method: PWM 4-stage
Monitoring: LED's, positive-grounding possible (on plus line)
Function: protection against overcharge- and deep-discharge of battery, programmable for two loads (2L series)

SALE OFF

Availability: in stock

Minimum order: no limit

Price: € 45.00 € 90.00
Net Price (excl. VAT)
pcs.
  • Best Deal

Phocos CIS10 Industrial Solar Charge Controller IP68, timer (12/24V)

Phocos CIS10 Industrial Solar Charge Controller IP68, timer (12/24V)
Phocos CIS10 Industrial Solar Charge Controller IP68, timer (12/24V)

Waterproof (IP68) PV solar charge controller
Loads: single load (dimmable)
Nominal voltage: 12/24V (autodetection)
Panel max current: 10A (Isc)
Panel max voltage: 42/52V (Voc) in 12/24V systems
Charging method: PWM 4-stage
Monitoring: LED's, positive-grounding possible (on plus line)
Function: protection against overcharge- and deep-discharge of battery, programmable for one load

SALE OFF

Availability: in stock

Minimum order: no limit

Price: € 27.00 € 54.00
Net Price (excl. VAT)
pcs.
  • Best Deal

Phocos CIS20 Industrial Solar Charge Controller IP68, timer (12/24V)

Phocos CIS20 Industrial Solar Charge Controller IP68, timer (12/24V)
Phocos CIS20 Industrial Solar Charge Controller IP68, timer (12/24V)

Waterproof (IP68) PV solar charge controller
Loads: single load (dimmable)
Nominal voltage: 12/24V (autodetection)
Panel max current: 20A (Isc)
Panel max voltage: 42/52V (Voc) in 12/24V systems
Charging method: PWM 4-stage
Monitoring: LED's, positive-grounding possible (on plus line)
Function: protection against overcharge- and deep-discharge of battery, programmable for one load

SALE OFF

Availability: in stock

Minimum order: no limit

Price: € 39.00 € 78.00
Net Price (excl. VAT)
pcs.
  • Best Deal
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